Perodic Table

Question 1

What is matter

Answer 1

Things made up of tiny particles

Question 2

What is an atom

Answer 2

Tiny particles in which things are made from

Question 3

Atoms- created? Destroyed?

Answer 3

Atoms are indestructible and cannot be created or destroyed

Question 4

Atoms in element

Answer 4

All identical (each element has its own type of atom)

Question 5

Atoms in compound

Answer 5

Atoms of an element is always joined to a fixed number of atoms of other elements (2 or more)

Question 6

What happens in a chemical reaction

Answer 6

Atoms rearrange to make new substances

Question 7

Examples of properties in an element

Answer 7

Melting/boiling point, colour, strength, density

Question 8

What is produced when copper and oxygen react?

Answer 8

Copper oxide

Question 9

When are new substances formed?

Answer 9

In chemical reactions (chemical changes)

Question 10

What is melting, boiling and freezing point

Answer 10

Mp- where solid changes to liquid
Bp- liquid starts to evaporate
Fp- same as melting point

Question 11

What is the melting and freezing point of water?

Answer 11

0°c

Question 12

Properties of metals

Answer 12

High mp, strong, flexible, malleable, shiny,good conductors of heat and electricity

Question 13

Properties of non metals

Answer 13

Low mp, brittle, dull, poor conductors of heat and electricity

Question 14

What is produced when sodium reacts with water?

Answer 14

Sodium hydroxide + hydrogen

Question 15

What is produced when lithium reacts with oxygen?

Answer 15

Lithium oxide